Steam Community :: Guide :: Adding a Non-Steam Game to Your Library

I will give you instructions on how to add an application or game to your Steam library that was not purchased or activated through Steam.

A Handy Guide to Graphical Assets on your Steam Store Page

Steam Community :: Guide :: Adding a Non-Steam Game to Your Library

How to Add or Remove Non-Steam Games From Your Steam Library - Guiding Tech

How to Add or Remove Non-Steam Games From Your Steam Library - Guiding Tech

Steam Deck Tips: How to add a Non-Steam App With All Artwork - A Complete Guide — Planet Suj

I don't know if this is well known or not, but TIL that you can hold click and drag games into collections. No more right clicking and selecting add to collection.

How To Share Your Steam Library With Friends and Family

How to add external games to your Steam library

How to add non-Steam games to your Steam library

Does anyone know how to add a guide for non-Steam games? More info in the comments. : r/SteamDeck